///////////////////////////////////////////////////////////////////////////////////////////////////
// OpenGL Mathematics Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net)
///////////////////////////////////////////////////////////////////////////////////////////////////
// Created : 2008-08-22
// Updated : 2010-02-03
// Licence : This source is under MIT License
// File    : glm/core/type_tvec4.hpp
///////////////////////////////////////////////////////////////////////////////////////////////////

#ifndef glm_core_type_gentype4
#define glm_core_type_gentype4

#include "type_vec.hpp"
#include "type_float.hpp"
#include "type_int.hpp"
#include "type_size.hpp"
#include "_swizzle.hpp"

namespace glm{
namespace detail
{
	template <typename T> struct tref2;
	template <typename T> struct tref3;
	template <typename T> struct tref4;
	template <typename T> struct tvec2;
	template <typename T> struct tvec3;

	///Basic 4D vector type.
	//! \ingroup core_template
	template <typename T>
	struct tvec4
	{
		enum ctor{null};

		typedef T value_type;
		typedef std::size_t size_type;
		GLM_FUNC_DECL size_type length() const;
		static GLM_FUNC_DECL size_type value_size();

		typedef tvec4<T> type;
		typedef tvec4<bool> bool_type;

		//////////////////////////////////////
		// Data

#	if(GLM_COMPONENT == GLM_COMPONENT_ONLY_XYZW)
		value_type x, y, z, w;
#	elif(GLM_COMPONENT == GLM_COMPONENT_MS_EXT)
		union 
		{
			struct{value_type x, y, z, w;};
			struct{value_type r, g, b, a;};
			struct{value_type s, t, p, q;};
		};
#	else//(GLM_COMPONENT == GLM_COMPONENT_GLSL_NAMES)
		union {value_type x, r, s;};
		union {value_type y, g, t;};
		union {value_type z, b, p;};
		union {value_type w, a, q;};
#	endif//GLM_COMPONENT

		//////////////////////////////////////
		// Accesses

		GLM_FUNC_DECL value_type & operator[](size_type i);
		GLM_FUNC_DECL value_type const & operator[](size_type i) const;

		//////////////////////////////////////
		// Implicit basic constructors

		GLM_FUNC_DECL tvec4();
		GLM_FUNC_DECL tvec4(type const & v);

		//////////////////////////////////////
		// Explicit basic constructors

		GLM_FUNC_DECL explicit tvec4(
			ctor);
		GLM_FUNC_DECL explicit tvec4(
			value_type const & s);
		GLM_FUNC_DECL explicit tvec4(
			value_type const & s0, 
			value_type const & s1, 
			value_type const & s2, 
			value_type const & s3);

		//////////////////////////////////////
		// Swizzle constructors

		GLM_FUNC_DECL tvec4(tref4<T> const & r);

		//////////////////////////////////////
		// Convertion scalar constructors

		//! Explicit converions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
		template <typename U> 
		GLM_FUNC_DECL explicit tvec4(
			U const & x);
		//! Explicit converions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
		template <typename A, typename B, typename C, typename D> 
		GLM_FUNC_DECL explicit tvec4(
			A const & x, 
			B const & y, 
			C const & z, 
			D const & w);			

		//////////////////////////////////////
		// Convertion vector constructors

		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
		template <typename A, typename B, typename C> 
		GLM_FUNC_DECL explicit tvec4(tvec2<A> const & v, B const & s1, C const & s2);
		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
		template <typename A, typename B, typename C> 
		GLM_FUNC_DECL explicit tvec4(A const & s1, tvec2<B> const & v, C const & s2);
		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
		template <typename A, typename B, typename C> 
		GLM_FUNC_DECL explicit tvec4(A const & s1, B const & s2, tvec2<C> const & v);
		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
		template <typename A, typename B> 
		GLM_FUNC_DECL explicit tvec4(tvec3<A> const & v, B const & s);
		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
		template <typename A, typename B> 
		GLM_FUNC_DECL explicit tvec4(A const & s, tvec3<B> const & v);
		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
		template <typename A, typename B> 
		GLM_FUNC_DECL explicit tvec4(tvec2<A> const & v1, tvec2<B> const & v2);
		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
		template <typename U> 
		GLM_FUNC_DECL explicit tvec4(tvec4<U> const & v);

		//////////////////////////////////////
		// Unary arithmetic operators

		GLM_FUNC_DECL tvec4<T> & operator= (tvec4<T> const & v);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator= (tvec4<U> const & v);

		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator+=(U const & s);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator+=(tvec4<U> const & v);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator-=(U const & s);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator-=(tvec4<U> const & v);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator*=(U const & s);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator*=(tvec4<U> const & v);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator/=(U const & s);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator/=(tvec4<U> const & v);
		GLM_FUNC_DECL tvec4<T> & operator++();
		GLM_FUNC_DECL tvec4<T> & operator--();

		//////////////////////////////////////
		// Unary bit operators

		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator%= (U const & s);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator%= (tvec4<U> const & v);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator&= (U const & s);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator&= (tvec4<U> const & v);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator|= (U const & s);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator|= (tvec4<U> const & v);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator^= (U const & s);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator^= (tvec4<U> const & v);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator<<=(U const & s);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator<<=(tvec4<U> const & v);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator>>=(U const & s);
		template <typename U>
		GLM_FUNC_DECL tvec4<T> & operator>>=(tvec4<U> const & v);

		//////////////////////////////////////
		// Swizzle operators

		GLM_FUNC_DECL value_type swizzle(comp X) const;
		GLM_FUNC_DECL tvec2<T> swizzle(comp X, comp Y) const;
		GLM_FUNC_DECL tvec3<T> swizzle(comp X, comp Y, comp Z) const;
		GLM_FUNC_DECL tvec4<T> swizzle(comp X, comp Y, comp Z, comp W) const;
		GLM_FUNC_DECL tref4<T> swizzle(comp X, comp Y, comp Z, comp W);
	};

	template <typename T>
	struct tref4
	{
		GLM_FUNC_DECL tref4(T & x, T & y, T & z, T & w);
		GLM_FUNC_DECL tref4(tref4<T> const & r);
		GLM_FUNC_DECL tref4(tvec4<T> const & v);

		GLM_FUNC_DECL tref4<T> & operator= (tref4<T> const & r);
		GLM_FUNC_DECL tref4<T> & operator= (tvec4<T> const & v);

		T & x;
		T & y;
		T & z;
		T & w;
	};

	GLM_DETAIL_IS_VECTOR(tvec4);
}//namespace detail

namespace core{
namespace type{
namespace precision
{
	//! 4 components vector of high precision floating-point numbers. 
	//! There is no guarantee on the actual precision.
	//! From GLSL 1.30.8 specification, section 4.5.2 Precision Qualifiers.
	//! \ingroup core_precision
	typedef detail::tvec4<highp_float>		highp_vec4;

	//! 4 components vector of medium precision floating-point numbers. 
	//! There is no guarantee on the actual precision.
	//! From GLSL 1.30.8 specification, section 4.5.2 Precision Qualifiers.
	//! \ingroup core_precision
	typedef detail::tvec4<mediump_float>	mediump_vec4;

	//! 4 components vector of low precision floating-point numbers. 
	//! There is no guarantee on the actual precision.
	//! From GLSL 1.30.8 specification, section 4.5.2 Precision Qualifiers.
	//! \ingroup core_precision
	typedef detail::tvec4<lowp_float>		lowp_vec4;

	//! 4 components vector of high precision signed integer numbers. 
	//! There is no guarantee on the actual precision.
	//! From GLSL 1.30.8 specification, section 4.1.5 Precision Qualifiers.
	//! \ingroup core_precision
	typedef detail::tvec4<highp_int>		highp_ivec4;

	//! 4 components vector of medium precision signed integer numbers. 
	//! There is no guarantee on the actual precision.
	//! From GLSL 1.30.8 specification, section 4.1.5 Precision Qualifiers.
	//! \ingroup core_precision
	typedef detail::tvec4<mediump_int>		mediump_ivec4;

	//! 4 components vector of low precision signed integer numbers. 
	//! There is no guarantee on the actual precision.
	//! From GLSL 1.30.8 specification, section 4.1.5 Precision Qualifiers.
	//! \ingroup core_precision
	typedef detail::tvec4<lowp_int>			lowp_ivec4;

	//! 4 components vector of high precision unsigned integer numbers. 
	//! There is no guarantee on the actual precision.
	//! From GLSL 1.30.8 specification, section 4.1.5 Precision Qualifiers.
	//! \ingroup core_precision
	typedef detail::tvec4<highp_uint>		highp_uvec4;

	//! 4 components vector of medium precision unsigned integer numbers. 
	//! There is no guarantee on the actual precision.
	//! From GLSL 1.30.8 specification, section 4.1.5 Precision Qualifiers.
	//! \ingroup core_precision
	typedef detail::tvec4<mediump_uint>		mediump_uvec4;

	//! 4 components vector of low precision unsigned integer numbers. 
	//! There is no guarantee on the actual precision.
	//! From GLSL 1.30.8 specification, section 4.1.5 Precision Qualifiers.
	//! \ingroup core_precision
	typedef detail::tvec4<lowp_uint>		lowp_uvec4;

}//namespace precision
}//namespace type
}//namespace core
}//namespace glm

#ifndef GLM_EXTERNAL_TEMPLATE
#include "type_vec4.inl"
#endif//GLM_EXTERNAL_TEMPLATE

#endif//glm_core_type_gentype4
